Closed-loop method and apparatus for controlling acceleration an

Details Closed-loop method and apparatus for controlling acceleration an Closed-loop method and apparatus for controlling acceleration an

1992-03-05

1997-09-02

Sircus, Brian

Electricity: motive power systems

Open-loop stepping motor control systems

318254, H02P 800

Patent

active

056636245

ABSTRACT:
A closed-loop method and apparatus for controlling acceleration and velocity of a stepper motor in which a motor shaft encoder is used to generate a signal proportional to shaft position. This signal is subtracted from the motor input signal to produce an error signal which is compared with a reference value. When the error is equal to the reference value the motor is stepped again. Between each step, the reference value is decreased if motor velocity is too high or increased if the motor velocity is too low.

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Bump, et al; Character Impact Printer Offers Maximum Printing Flexibility; Hewlett-Packard Journal, vol. 27, No. 10, pp. 19-23.

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